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atari800/src/log.c

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+/*
+ * log.c - A logging facility for debugging
+ *
+ * Copyright (C) 1995-1998 David Firth
+ * Copyright (C) 1998-2005 Atari800 development team (see DOC/CREDITS)
+ *
+ * This file is part of the Atari800 emulator project which emulates
+ * the Atari 400, 800, 800XL, 130XE, and 5200 8-bit computers.
+ *
+ * Atari800 is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Atari800 is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Atari800; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#define _POSIX_C_SOURCE 200112L /* for vsnprintf */
+
+#include "config.h"
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+#ifdef ANDROID
+#include <android/log.h>
+#endif
+
+#include "log.h"
+
+#ifdef MACOSX
+#  define PRINT(a) ControlManagerMessagePrint(a)
+#elif defined(ANDROID)
+#  define PRINT(a) __android_log_write(ANDROID_LOG_DEBUG, "A800Core", a)
+#else
+#  define PRINT(a) printf("%s", a)
+#endif
+
+#ifdef BUFFERED_LOG
+char Log_buffer[Log_BUFFER_SIZE];
+#endif
+
+void Log_print(const char *format, ...)
+{
+	va_list args;
+	char buffer[8192];
+
+	va_start(args, format);
+#ifdef HAVE_VSNPRINTF
+	vsnprintf(buffer, sizeof(buffer) - 2 /* -2 for the strcat() */, format, args);
+#else
+	vsprintf(buffer, format, args);
+#endif
+	va_end(args);
+
+#ifdef __PLUS
+	strcat(buffer, "\r\n");
+#else
+	strcat(buffer, "\n");
+#endif
+
+#ifdef BUFFERED_LOG
+	if ((strlen(Log_buffer) + strlen(buffer) + 1) > Log_BUFFER_SIZE)
+		*Log_buffer = 0;
+
+	strcat(Log_buffer, buffer);
+#else
+	PRINT(buffer);
+#endif
+}
+
+void Log_flushlog(void)
+{
+#ifdef BUFFERED_LOG
+	if (*Log_buffer) {
+		PRINT(Log_buffer);
+		*Log_buffer = 0;
+	}
+#endif
+}